MECHANICAL PROPERTIES OF 9% Ni STEEL PLATES PRODUCED FROM CONTINUOUSLY CAST SLABS.

Ryoji Kinaka, Osamu Furukimi, Takahiro Kubo, Taketo Okumura, Masahiro Shingyoji, Junichi Kudo

Research output: Contribution to journalArticle

Abstract

From a low-P (0. 006% max), low-S(0. 002% max) continuously cast slab, 9% Ni steel plates for LNG storage tanks were produced by the direct quenching and tempering process (MACS-T) and reheat-quenching and tempering process (RQ-T). In the MACS-T process, slab-reheating and finish-rolling temperatures were increased in order to increase ductile fracture energy by decreasing the amount of precipitated austenite. Reliability for LNG storage tanks was examined by conducting fracture toughness tests on these steel plates and their welded joints. As a result, it was shown that these steel plates and their welded joints had good crack initiation and arrest toughness.

Original languageEnglish
Pages (from-to)64-72
Number of pages9
JournalKawasaki Steel Technical Report
Issue number17
Publication statusPublished - Oct 1 1987

All Science Journal Classification (ASJC) codes

  • Metals and Alloys

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    Kinaka, R., Furukimi, O., Kubo, T., Okumura, T., Shingyoji, M., & Kudo, J. (1987). MECHANICAL PROPERTIES OF 9% Ni STEEL PLATES PRODUCED FROM CONTINUOUSLY CAST SLABS. Kawasaki Steel Technical Report, (17), 64-72.